To find the measure of ∠B′, we need to understand the relationship between corresponding angles in a reflection.
When a shape is reflected over the y-axis, each corresponding angle will have the same measure. In this case, ∠B′ is the reflection of ∠B.
Looking at the figure, we can see that ∠B measures 85°. Therefore, ∠B′ will also measure 85°.
So the correct answer is 85°.
The figure shows quadrilateral ABCD
reflected over the y-axis to produce quadrilateral A′B′C′D′
. What is the measure of ∠B′ ?
(1 point)
Responses
85°
75°
120°
80°
1 answer